Máy đo độ cứng siêu âm UCI NewSonic SonoDur2
Measuring Specification
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Measuring principle
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UCI Method, corresponds to DIN 50159, ASTM A1038
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Test indenter
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Vickers diamond 136°
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Test loads
Newton scale (1kgf = 9.81 N)
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Motor probes: 1N (0.1 kgf), 3N (0.3kgf) and 8.6 N (0.8 kgf)
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Handheld Probes: 10N (1 kgf), 49N (5kgf), 98N (10kgf)
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(Other test loads on request)
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Hardness scales and range
Note:
Conversions are acc. to latest ASTM E140, EN ISO 18265, and DIN 50150. Conversions into tensile strength: 98N (10kgf) test load only.
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Vickers HV 10 – 9999
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Brinell HB 76 – 618
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Knoop HK 87 – 920 (ASTM only)
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Rockwell HRB 41 – 105
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Rockwell HRF 82,6 – 115,1
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Rockwell HRC 20,3 – 68
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Rockwell HRA 60,7 – 85,6
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Rockwell HRD 40,3 - 76,9 (EN ISO 18265 only)
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HR45N 19,9 – 75,4
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Tensile Strenght MPa (N/mm2) 255 – 2180 (EN ISO 18265 only)
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Measurement uncertainty
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< 3% of the average out of 5 measurements relative to the plate value
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Relative repeatability
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< 3% (range relative to the average out of 5 measurements on reference block 300HV using motor probes 3N, 8.6N)
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